<human>: Could you distill the essence of the text into 1-3 sentences?

My friend and I were hanging out with his girlfriend and a few of her friends, and the suggestion comes up that we all play truth or dare. His GF and I used to be in a relationship, but I broke it off because I was beta as fuck. Well, my best friend's even more of a beta. She was his first kiss and he still hasn't even gotten tongue. Well, it was my turn and I picked dare. I was dared to make out with Beta McGee's girlfriend. Well, I was reluctant because we were really good friends and I didn't want to upset him, but he told me he was cool with it. So we start making out and I start to get into it, I run my hand down her back and unhook her bra strap and I begin to feel her up. She's fine with it and we keep making out and I continue down her back and grab dat ass. I squeeze. My best friend gasps and I stop for a minute and realize that I went too far. He looks like he's about to cry and when I look back at his gf, her cheeks are beet red and she had this wicked grin on her face. I turn around and apologize profusely to my friend while the chicks behind us are smiling and giggling. I felt like such a douchebag.
<bot>: Truth or dare leads to intense make out session between me and my beta friend's gf. Unhooked bra strap and booty squeeze before I remember that she's my friend's gf.