I'm starting to have this problem..I have this marine friend that we been hanging out for a couple of months. Hes really good looking he's about 6ft tall all muscle got the biceps, pecs, he's got brown skin and beautiful smile. We've hanged out but recently we've gotten closer as in hanging out every weekend..I'm bi and I know he straight.I I think I'm starting to get fellings for him..I don't know if its lust or somethingelse but it started this past weekend..we went hiking and it got hot so we endedup without our shirts and I was behind him and I couldn't stop lookin @ his sweaty back and nice ass. I keep wanting to grab it. So when it was over we went back to my place I took a shower and then he took a shower and he comes out in his boxer briefs. Were really comfortable around each other ..but he has a nice buldge and I really want to see his dick to see what he's packing but I don't want these feelings. We have a good friendship and I don't want to ruin it..what should I do?