Yeah, My gf is 23 and started something new a few weeks ago. I don't know if anyone else does this. I kept asking her to take it in the ass, I'd stick my tongue or finger in and she'd like it but if I tried to fuck her ass she would stop me. I asked her what I could do to let me fuck her ass and she said if she could fuck mine, I could do hers. One night as she was sucking my dick she stuck a finger in my butt. It was weird but if I tried to push it out, it seemed to go deeper. She used some cream she had and after a while she got 2 fingers in. When I came, it felt like I was pissing. I came a whole lot, and she just let it run out of her mouth back onto my stomach.
A few days later, we were at her place and she said she was ready to fuck my ass. This time she had me bend over the pillow and slowly put a small dildo in. It was about an inch and a half think and 6 inches long, and once she got the tip in, the rest was ok. She kept lubing it and fucked my ass for a few minutes. Then she said it was my turn.
I ate her pussy and ass for a while and put some cream on my cock and tried to put it in. I barley got the tip in before I came it was so tight. That night, she bitched about my cum leaking out and her farting all night.

Now, I can fuck her ass but only with a rubber. I wanted to cum in her mouth and she says not until I eat the cum too. One night I finally came in her mouth and she kissed me right after. It wasn't so bad. Now, I eat her pussy after I fuck her and she goes crazy! If I cum in her pussy and eat it, she will blow me again until I'm hard and let me fuck her ass until I cum again.

I suggested a threesome with one of her girlfriends and she said after we do a threesome with one of my friends. I'm not sure about that!