Underwear Exchange

Alex and I have been friends for a long time. He knows me inside out - emotionally, that is. I wasn't sure if I had feelings for him, but he was sure about me: he'd made it quite clear he wasn't into me over the years.

This didn't stop me fantasising about him though. Maybe when we were watching a film, I would lean my head against his shoulder and wish that I could curl up in his lap. Or when I was telling him about a great orgasm I'd had, I wish he'd ask to be a part of it next time.

I knew he had a fetish for women's underwear. We'd often stay up late into the night, discussing our lives, our dreams, our desires... We were pretty open with each other about our sexualities, which is how I came to understand what really turns him on.

The idea of him getting hard for me was irresistible. I wanted him to love me in that way, to want to hold me and use me in the most intimate ways. I admired him so much, and I just wanted to be wanted by him.

So I started thinking about ways that we could add a sexual aspect to our friendship. I wasn't in love with him, and he wasn't with me, so I wasn't looking for a sweeping romance. But we were both single, and horny, and just gasping for a bit of release.

One afternoon I made a suggestion to him. It was a humid, sunny day and we were sat in the shade of a tree in the park. We were both lying on our fronts, propped up on our elbows, soaking up the summer.

"Alex," I start, nervous all of a sudden, "do you know the kinds of lingerie you find most sexy?" He laughs in surprise. "What do you want to know that for?" he asks. "Just curious, " I say, "I know some guys say they prefer silk, others simple cotton... I was just wondering what your take is." He seems to relax and offers me a philosophical explanation of his own tastes. It's then that I explain what I want. He looks surprised, but not shocked. After a little bit of back and forth on the specifics, he agrees, with a glint in his eye that I don't quite recognise.

Ever since then we have had this arrangement in place. At the weekend, I pick out some underwear I know he'd like, and make sure I have a really good time in it. I then post it to him - we live in different cities - and he gets it the next day. He keeps them for a week and can do whatever he wants with them. I only have one request: that he fills them up with his cum before he sends them back. Once he's posted them back to me - oh God do I love getting that parcel - I wear them as I go about my day - working, resting, and giving myself as many orgasms as I can.

I love having his cum on me. It makes me feel so close to him, even when we're apart. Knowing he's done that for me makes me feel so loved, so wanted, so safe. It's a real, tangible sign of his affection for me, and I need that affection so much. His opinion means everything to me.

This weekend I pick out a pair of black cotton bikinis, with lace around the edges. Alex explained that although he finds lace very sexy, he loves ones with a cotton gusset which really soak up a woman's juices. This pair are slightly old, and they're wearing thin a little at the front where I rub my clit through them. The thought of my best friend seeing how much I masturbate makes me blush a little. I feel my cunt start to get wet and bite my lip. I can't believe we actually do this!

But oh we do... So I give into my rising desire and lean back onto my bed. I'm naked apart from the knickers - I love how dirty it feels to get completely naked and pleasure myself all over. I start by teasing my breasts, brushing against my sensitive nipples, gathering and squishing my breasts against my palms. I picture Alex leaning over me and touching me, kissing me, pressing me back onto the bed. I spread my legs and imagine he wants to fuck me. I imagine he really wants to make me his, finally, all his...

My fingers move from my breasts to my clit and it's instantly electric. I rub myself through the worn black cotton, spreading my legs wide as I imagine Alex's stiff cock sliding in and out of me. God, I love him so much. At this moment, I feel like I would do anything for him. I can see his face as my fingers pick up speed, circling faster to match the urgency of my desire. I'm trying to be quiet so my housemates don't hear, but I can't help letting out a small moan as I approach the edge. I'm so close, and I'm picturing Alex cumming in me, so hard, spurting his seed deep inside me, as my legs fold around him, pulling him closer, closer, and oh God I'm cumming, cumming, cumming! Cumming so hard. All for him.

As my orgasm subsides I rub my slippery lips through my knickers, contemplating my obsession with cum. I want nothing more than for Alex to give me that, bareback, as many times as he'd want. I think it would make me feel like I belonged to him, but it's more than that. It's such an intense connection, based on ecstatic pleasure and strong desire. I yearn to make him that happy. He is such a good friend to me.

After a few more rounds, I pack the underwear into a lined envelope and send it off. I never include a note - somehow it feels more dirty this way.

I just hope he likes them...