So I was at a party on Sunday night (different from the Saturday night ranch party from my other post), and I know all of the girls there, and they're either taken or unattractive to me. So, I sit down with one of my friends gf's and we're talkative and such (I find her attractive, but I wouldn't try anything). We call each other gossip buddies all night, I give her one of my mike's hard lemonades because I enjoy talking to her. Anyway, by the end of the night, I'm pretty tipsy and the host (one of my good friends)'s girlfriend comes over. She says to me, "I wouldn't usually come but I heard you were gonna be here and (her boyfriend) doesn't really sit down with her at these parties." We've had times where he's invited me to eat with her and I'll just kino the living fudge out of her, where he looks like the greatest chump in the world. I think she's really cute and we have cute interactions together.
After we help my friend clean up, he can't drive because he's buzzed, so our DD takes her home with us (she lives 2 doors down from me). We go to taco bell and then wall greens. When we're in wallgreens, she follows me into the condom aisle (as a joke) and I have a lot of sexual innuendo and general facts that I know about orgasms and sex from TED talks. Anyway, she leaves her arizona can with me and I "Ain't havin none of that" so tried to put it down her shirt/in her skirt etc. and she's having a great time and so am I.
When we finally get home (I insist she gets dropped off first) I have my arm around her in the back seat. She says it's really dark so I'm like "ok I'll walk you to your door." Once we arrive at her door, I go in for a hug and she says "This is the most awkward ki..."(she goes in for it) and we hug then she says "I don't know why I just said that." I know exactly why, so I kiss her on the cheek and I make sure I have her number.
I don't know if I should escalate further, because it's my good friend's girlfriend, or if I should just keep this between us and try to get a friends with benefits thing going (which would be my ideal choice), or if I should just drop it and forget it existed.