Tell her about the drive

Sam blushes at the comments before figuring that honest is maybe the best policy. "Well, she, kinda stripped off when we were driving back from the hyper market." He tells her slowly.

Shelly giggles a little, shaking her head. "Yeah, maybe I should have warned you about her," she explains. "She does have something of an exhibitionist streak in her. It's normally pretty harmless though."

Sam smiles at his friend, feeling his cock stirring once again at the thought of spending the evening with his best friends beautiful girlfriend and a married exhibitionist. "Yeah... yeah perfectly harmless." He says slowly.

Shelly looks at him for a moment, then her eyes fall to his lap, spotting the slight tent forming in his jeans. "Oh, sorry.... I could have a word with her if you like, tell her to maybe tone it down a bit around you?"