After an erotic weekend, I happened to slip into my girlfriend's bra....and I liked it a lot, once I got comfortable!
My girlfriend and I both lived in dorms, and so we had a little trouble finding a place to have good sex. One weekend we made reservations in a hotel in the city, and had a fantastic time-making love, eating, and seeing some great movies on tv, and walking around the city.
We had time to make long, slow love, and I was totally into sucking and kissing and fondling her breasts and nipples. My girlfriend was tall and broad, and she had small breasts, very nice ones, with full large nipples. We were really into it-she even had an orgasm just with her nipples-and in return she did my nipples really well, too, when we were making love.
When we got back to school, she left her bag in my car, and I took it to my room. My roommate was gone, and I suddenly had the urge to see if a bra was in her bag, and I found a silky plain one, and I had the urge to put it on, and I slipped into it very easily.
I was afraid I'd be seen, so I slipped a sweater over, and I spent the evening like that. I dared to go down to the dining hall and eat dinner with everyone! I took a walk to a bookstore and browsed! I felt very nice, erotic, gentle, and sexy. I went back to my room to study. My nipples were erect and stinging!
I kept the bra on while I studied, and then my roommate came back-oh oh! How to get undressed?? Well, I went to the bathroom and took it off and came back and we turned the lights out and 'went to sleep'. My chest felt so free without the bra, my hand quickly went to my nipples, and I quietly played with them with both hands, and felt my dick swell up.
After a long time playing with my 'breasts', I gently slipped my hand down over my cock and pressed it against my body, and with a few smooth moves I shot a big, big wad onto my stomach. I was still excited and masturbated again while pinching my nipples.
I've masturbated many times thinking of how it felt in her bra, and since then I really love to play with my nipples before I masturbate. I didn't tell my girlfriend, but I asked her if we could trade tee-shirts, and we both like to go out like that. If anybody was to notice, they'd see four perky nipples poking out, smiling at them!