[B/S][UPDATE 4] Brother got an erection

Original Post: https://www.reddit.com/r/incest/comments/5ehd5k/bs_brother_got_an_erection/

Update 1: https://www.reddit.com/r/incest/comments/5gqaje/bsupdate_brother_got_an_erection/

Update 2: https://www.reddit.com/r/incest/comments/5h00tt/bsupdate_2_brother_got_an_erection/

Update 3: https://www.reddit.com/r/incest/comments/5ihv2a/bsupdate_3_brother_got_an_erection/

I know I haven't updated in a while which is why I linked everything above. This is actually the first time I've been away from my brother since he came home for Christmas break. Classes resume next week. He's still home, but tonight he's gone out with old high school friends. We've been texting though and he said he would rather just be in bed with me lol

Since my last update, things have been going great. I spend every night with him and we just have been hanging around during the day. I'll spare you those details and just get to the bit I know you all are looking for...

Every night, I would climb in bed with him and we would fall asleep spooning. This became my absolute favorite time of the day. We didn't have sex or anything, but just being in his arms would excite me. After the third or fourth night, I crawled into bed without a shirt on. It was dark when I climbed in so he couldn't tell until he put his arm around me. He had felt my chest through my shirt every night before, but this was the first time he touched it. He made a little moaning sound as he cupped a breast and pulled me in. I'm flat chested, but he doesn't mind that. I felt his bulge press against me. I felt it every night and every morning, but this was the first time he seemed to purposefully hold it against my body. Every night after that, I continued to go to bed without a shirt on and he would just grind against me until we were ready to sleep. We talked about sex, but we both agreed that should wait.

On Christmas day I was particularly horny. I think that was the tenth day since he had been home. As I laid in bed feeling him press against me, I told him I was ready. There was a pause then he said "Don't worry little sis, I'll take care of you". He kissed my neck, then my back, then father down my back a few times. He kissed my butt and he grabbed my panties and pulled them off. I spread my legs for him. I was already just soaking wet. He leaned down and kissed the inside of my thighs. I got sick of his teasing and I grabbed his head and put right between my legs and pulled him in. He kissed me there and began to lick me. It wasn't 2 minutes before I came. After I stopped shaking, he came up and kissed me on the lips. I asked what he wanted and told him he could fuck me. He said he wanted to, but he wanted to wait. I offered him a blowjob and he said no. What we finally did was he just sucked on my nipple while he jerked off. He came pretty quick too.

Since Christmas, he's eaten me out and/or fingered me every night. He still likes to just jerk off while he eats me out or sucks on my nipple. I've given him a few hand jobs, but he stopped me the few times I tried to put it in my mouth. He hasn't said why he doesn't want to have sex, but he did assure me he didn't have an STD or anything. I think that's just his line where it would be too taboo or something. I don't want to pressure anything so I left that alone.

I only have 3 more nights with him until he has to go back and I am just dreading it. We've been talking about if I get accepted to the university he's at next year, possibly getting an apartment together. That would just be a dream come true, but it means I have to work to get my grades up at the community college I'm at. It's definitely worth it for him....