My Father-in-Law’s Assignment and My Sister-in-Law’s Tongue

That afternoon my father-in-law called me and told me to come to his house. For the occasion I chose a white mid-calf dress and black stockings. When I arrived, Lourdes, the maid, opened the door for me and led me into the living room. When I pushed the door open, I discovered that my father-in-law wasn’t in the main armchair. It was Marisol, my sister-in-law, who was waiting for me with a slow smile.

—Hi, how are you, little sister-in-law? —she said, not moving.

I sat down opposite her, on the same sofa where I had lived through and witnessed so many things. Marisol got to her feet, crossed the rug at her leisure, and looked me up and down.

—I think the bastard of my father wants you and me to fuck —she blurted out, without beating around the bush.

She came closer, put her hand under my chin, and forced me to hold her gaze.

—Relax, little sister-in-law. I’ve got experience with this.

Before I could answer, she shoved me onto the sofa and hiked my dress up until the navy thong I had put on thinking of my father-in-law was exposed. She began stroking me over the fabric, slowly, gauging my reactions. Then she slipped her fingers under the elastic.

—You know something? —she said softly—. At boarding school I used to do it with classmates and with the occasional teacher, and a lot of the time I thought about you.

Without waiting for an answer, she brought her lips to mine in a long, passionate kiss that left me not knowing whether I was letting her do it or whether I was the one chasing her. Feeling dominated by her got me hot in a way I hadn’t anticipated.

—I think it’s better if we both stand up —she murmured—. That way we can get undressed more easily.

I obeyed her. Before I’d even finished thinking about it, she had already stripped off my dress and left me in just the thong. That afternoon I hadn’t put on a bra. She was still dressed from head to toe, and instead of making me uncomfortable, that made me even hotter. Without stopping kissing me, she tugged my thong down and let it fall to the floor.

I took the initiative myself, almost without realizing it. I took off her blouse, her skirt, the bra she wasn’t wearing either. Under her clothes, Marisol was also hiding a thong, this time yellow. I pushed her against one of the living-room walls, turned her around, knelt down, and for the first time up close, I saw that ass I had so many times imagined on the other side of a screen.

When I stood up, she turned and we were pressed together, face to face.

—Sis-in-law, I understand that my older brother the idiot is crazy about you —she whispered to me—. You’re fucking gorgeous.

—You’re the one who’s a truly beautiful woman, Marisol. Young and very desirable.

We kissed again. She pushed me over to one of the columns that separated the living room from the dining room and knelt down in front of me. She stuck out her tongue and slipped it between my legs with a skill that left me speechless. I don’t know what else she’d learned in that boarding school, but she went down on pussy like a straight-A student. Her tongue played with me in an almost cruel way, stopping just before each edge, starting again when I already thought I was about to explode. It didn’t take long for her to bring on an orgasm that left my legs shaking.

—My girl, you’re fabulous —I told her, pulling her toward me—. Now it’s my turn to show you what I can do.

I knelt down. I ran my tongue over her lips, slowly at first, and then I slipped it inside. Marisol moaned and clutched my shoulders.

—I never imagined I’d have such a slutty, dykey sister-in-law —she panted—. It’s obvious I’m nowhere near the first pussy you’ve eaten.

I wasn’t. But that wasn’t the moment to tell her my life story. I kept focused on her pleasure until she had hers. Marisol wasn’t one of those who take long to come. When I stood up, I thought it was over there. I was wrong.

She made me turn around and face the column, with my back to her. I felt her kneel behind me and, a second later, her tongue touching a place no other woman had ever put it before.

Ever since I had become what I was for my father-in-law, I had learned to keep my hygiene as if it were a professional obligation. I didn’t spare myself any filthy thing I could think of, but I had never tried anything like that. Marisol’s tongue between my ass cheeks seemed to me the dirtiest and, at the same time, the most exciting thing that had ever happened to me in my life. I came again without her even touching my cunt.

When I could breathe again, I decided to suggest something to her.

—What do you say, little sister-in-law, if we do a sixty-nine on the floor?

I didn’t wait for an answer. I lay down on the rug, spread my legs, and invited her with my eyes. Marisol laughed.

—I didn’t imagine you were such a slut, sis-in-law.

She got on top of me, in inverted position, and went down on me again. I didn’t hold back. The two of us started licking each other as if we were competing. Marisol had gone longer without coming, so I worked her patiently until she gave in. When she did, she let out one of those phrases that always slipped out of her.

—Fuck, sis-in-law, you do wonders with your tongue. If you do it to my brother the same way, he must be blown away by you.

I didn’t tell her that all her brothers had been through my mouth, and that none of them had complained. She kept taking care of me until I got another orgasm. It was hard for me to breathe.

—We’re both such whores —she laughed—. Should we keep going on the sofa, sis?

She thought it was a great idea. I asked her to sit with her legs open. I got on all fours, like a bitch, and ate her out again. I was getting addicted to her taste.

—Looks like, little sister-in-law, you’ve developed a taste for my cunt —she panted—. And, you know, you’re making me come like never before. At boarding school no girl ever made me come this many times.

I kept at it until she came again. Then she made me change position. I leaned against the back of the sofa, she knelt on the cushions, opened me with one hand, and with the other slipped three fingers inside me. She brought her head to my other hole and started running her tongue along the rim. The combination took me somewhere new. My moans went completely out of control.

—Do you like it, little sister-in-law? —she asked, knowing the answer.

There was no need to answer. Marisol kept going until she brought me to a huge orgasm, different from all the ones before.

—Are you satisfied? —she asked me afterward.

Truth was, I wasn’t. I felt like I had to give it back to her. I asked her to get on all fours on the sofa. I knelt on the floor behind her and did exactly the same to her. It was the first time in my life. I knew it wasn’t the most hygienic thing, but the taste combined with her moans made me understand why she had insisted. When she came, I stuck out my tongue.

—What an afternoon you’ve given me, bitch —she said, breathless—. One of the best in my life. We have to do this again.

She kissed me again, deeply, on the mouth. We both got dressed. I left my father-in-law’s house with my legs still trembling.

***

A few days later I received the usual order: connect to the camera. When I did, the screen showed the chalet library. In one of the armchairs was Daniela, the wife of another of the powerful businessmen in the area, a partner of my father-in-law in more than one matter. She was wearing a sober-cut white dress. A while later Marisol appeared in a short pink strapless dress. She sat down beside her.

The two of them chatted as if nothing were going on. Marisol explained that her father was getting her involved in the family business while she finished her degree, and that one of the agreements he had put her to work on involved both houses. Then she lowered her voice.

—I’ve noticed the way you’ve been looking at me for a while now —she said, with her hand resting on the other woman’s knee—. I’ll be a very good friend to you if you help me with this business.

Daniela understood. They both got to their feet. The woman wrapped her arms around Marisol, slid her hands down to her ass, and my sister-in-law grabbed her head. They kissed long and deep. Before the other one had finished processing it, Marisol had already pulled down her dress and left her in white panties and bra.

She sat her on the sofa, stepped back, and took off her own dress, staying in a tiny thong. It was obvious she had prepared for the encounter. Then she leaned over, removed the bra, and threw her mouth onto Daniela’s nipples. While she sucked her, she kneaded her breasts with both hands.

—Doesn’t your husband do this for you? —Marisol asked her, without looking up.

—No, darling. He hasn’t touched me in ages. I suspect he does it with some employee.

—Men are pigs —Marisol murmured—. But I promise you’re going to come like crazy, if you help me with the business.

As a prelude, she took off her panties. She lowered her head and started eating her cunt. Daniela moaned as if something had been torn out of her.

—I never would have imagined you could enjoy yourself this much with a woman —she said, clutching the cushion—. It’s the first time.

—Admit it, you’ve been wanting women for a while now —Marisol replied, pulling back for a moment.

—Yes. I’ve been noticing young girls for a while, but I hadn’t dared.

Marisol kept going, patient, until Daniela came with a long, almost animal moan. Her sister-in-law came up to her mouth and kissed her.

—You’re beautiful —Daniela told her—. I adore you.

—So are you. There’ll be plenty of young guys delighted to fuck you. If you want, I’ll help you get them.

—Thank you, my love. But now I’d like to give it to you myself. I’ve never done it before.

—Don’t worry. I’ll teach you.

Marisol sat down on the sofa. Daniela kissed her breasts, went down her belly, took off her thong, and faced her cunt with the nervous clumsiness of a first time. But she was eager, and that weighed more than technique. Marisol closed her eyes, let out short sighs, guided her with soft words. When she came, she stroked her head.

—Sweetheart, you’ve learned fast. You’re going to do very well. But I want you to learn other things too. Lie down.

The student obeyed. Marisol asked her to lift one leg, sat on top of her, and rubbed her sex against hers. Then she told her to get on all fours on the sofa. Marisol settled on the floor behind her, pressed her mouth to the other woman’s ass, and started kissing it. Then she slipped her tongue into her cunt.

—My love —Daniela panted—, I never thought this could be done. And that it could feel so good.

Marisol gave her the same treatment until she came again. The disciple wanted to return the lesson. This time it was Marisol who got on all fours and Daniela who knelt on the rug. She did it with much more ease than the first time.

—You do it divinely —Marisol told her—. I’ll make sure you have plenty of pussies to eat.

Daniela kept going to the end. When Marisol came, the other woman looked at the clock and let out a small complaint.

—The afternoon flew by, but I have to go.

She got dressed. Before leaving the camera frame, she leaned over Marisol, kissed the corner of her mouth, and whispered a sentence I heard perfectly from the other side of the screen.

—Take the deal for granted. And any others you want, my love.

I turned off the connection. I sat for a while in front of the monitor, still breathing hard. My father-in-law is going to call me again very soon.