You went with Lexi, but Mark followed

With her so close to you, you were unable to resist her. So you got lead away by Lexi.

"Hey, wait!" Mark cat-calls as you get walked around a corner into a small back alley between two buildings. Mark followed you.

As you got into his view, Lexi was already giving you a deep, passionate kiss while rubbing your growing bulge on your pants. He was shocked to see you not fighting back at all, as well as the girls skirt tenting up by her own hardening cock. It was unexpectedly big. Lexi opened your fly and pulled your own erect cock out. It was smaller than hers, but Lexi still was more focused on it. She broke the kiss and knelt down. You looked past your breasts and saw her sexual, seductive smile as she licked the tip of your cock. She was about to suck you off, and you couldn't stop her.