Yeah I'll have one

"I'll have one too" said John, in a shaky sort of way. "Yeah, get me one too" said Amber. "Alright, give me a minute" said Doe as he went down into the basement to fetch some beers. During this time you chatted with the girls and noticed how Elissa had gotten closer and closer to you over the course of the conversation.

A minute later, Doe returned and you all said cheers to the end of school. After a few drinks the group began to talk more loosely, and it soon seemed that Elissa was dominating the whole conversation, while Amber simply sipped her beer, more reserved than ever, and Doe glared at Elissa with a look of contempt for not allowing him to speak. It was evening now, and John thought he'd leave soon to go home for dinner, when the first sexual act of the night occurred. When Amber rose to grab her third beer, in 2.5 hours, Elissa (now on her seventh beer, with a few shots as well), spanked her. At first she looked surprised, then slightly appalled, followed by an affectionate kick to Elissa's back. Elissa on turn got up and grabbed Amber by the breasts, and before she could react, kissed her on the lips. John and Doe looked on in delight at the kissing best friends.

For the first time all day, Amber looked happy with herself, and gave the boys a look of embarrassment and satisfaction. Doe was already stripping himself and Elissa was following suit. She sure looked sexy, but Amber's breasts were the most enticing thing in the room by far. John's next action then was to?