So I'm in my last year of college and live in a party house that throws down often. The last two parties, the same thing has happened when Im trying to get laid. I'll be dancing with a girl, we'll start making out and then I'll lead them to my room. Next Im on my bed with the girl, we're both feeling each other up still making out and I slowly started rubbing her from outside her leggings while still kissing and it seems like she reciprocated, so I kept going, as she was rubbing my junk, so i pulled out her tits and kept escalating. Everything seems to be going fine and she goes "i'm not sure about this". I ignore because right after she said that she kept putting her tongue in my mouth. Eventually she said her friends are blowing up her phone and she needs to go find them.

This has happened twice in the same month, practically same exact situation with two different girls. I don't get it, we're both drunk, girls are at my frat party to get piped, whats the hold up? It seems like all the logistics are there but I just haven't been able to finish lately and am in a bit of a dry spell. Any advice is appreciated.