Thanks for the responses - it helps, I am no player (really?) so this is all a little new to me. Regarding #1 needing to be in love, the girl running the house who I have become good friends with said that was a total BS line, she has hooked up with guys in the past she was not "in love" with. No worries about me telling a girl I love her, I doubt any chick will hear that from me all summer. I am going to play it by ear - there was never any inkling of a realtionship with #1 so there is no bridge to burn, there was just harmless flirting. Forgot to mention, the 1st thing that #1 says to me when I walked into our room the Friday of Mem Day w/e was that we are sharing a bed

I told her, "that's cool by me - but you do realize I am a full share right?" I'll just try to keep the nookie on the dl when any of the other girls are in the room just out of courtesy and to not ruin my chances with any of them (another one has a smoking younger sister that visits, can't be a day over 22)
also just to clear something up, #1 is in my house and is one of my roommates (she is a half share). #2 is a good friend of one of the girls in the house, so chances are she will not be by a lot this summer unless I give her a reason to, so probably all the better to bang #2 while she is so eager to sleep with me