First, you strip her down

Soon enough you hear the doorbell ring, so you rush to answer it. Waiting there is Rosa, wearing a short black dress, and a shocked expression upon finding you naked.

"Come on in."

"Sure."

You close the door behind her and then lead her towards the dining room. On the way there, she says "So you must be John?"

"Yeah."

Inside the dining room, Rosa looks to the five other naked people that occupy it.

"Hey there Rosa." Sarah says.

"Uhh hey."

"Didn't expect us to all be naked?"

"I guess not."

"Think you should join us." You say, putting your hands on Rosa's hips.

"Sounds only fair."

Your hand moves to unzip the back of her dress, which you then peel off. Once its a crumpled mess on the floor, you take a step back to fully appreciate her body, including her plump ass that is 'covered' by a black thong.

"Very sexy." Nicole comments.

"Spin around and show everyone that ass." You state.

Rosa does exactly that, giving everyone a view of her butt. "Like what you see guys?"

"Sure do." Matt states.

"Mhmm. Very nice." Kathy adds.

"All that's left to do is decide what to do with her." Nicole says.

Rosa looks to you with a smile. "What did you have in mind, John?"