" Gwen spoke, gesturing to Carla. "And there are a lot of things you're old enough to do. I just don't want you doing any of those things at the wrong...time, or for the wrong reason. So, it's best to eliminate the temptation." Gwen knew that her brother wasn't stupid, but he was surprisingly naïve at times.Carla realized what Gwen meant first. Her eyes went wide with shock. Her expression quickly became angry. "She thinks that we mean to sneak out back and... and consummate our. “They told me to not let those stay on too long” he said, nodding at her breasts, the bulge of the hidden clamps discernable if you knew what to look for. He looked around quickly, then deftly pushed her shirt up, baring her breasts as they stood in the open door of their car.“Oh god” Talia said, her eyes darting everywhere as she felt him expose her to the back of the parking lot. Thankfully she could not see anyone, but she was still effectively topless in public, albeit with a shirt around. But we digress ... Back to the action.Erica is standing in the middle of the room – waiting. We can tell from her body language that she can’t wait to get her clothes off, she’s just waiting for the order... We hear Jenna, from off camera, giving her that order. “Now - before you can get friendly with your partner for today, you need to get ready, and the first step to being ready, is to get naked...”Erica somehow manages to make her smile even wider than before. Reaches up to undo the top. I pulled her hands together behind her and then slowly raised them together until I could tell she could go no further comfortably. Holding her hands there with one hand I slowly pulled my cock back a couple of more inches from where I had slid out in reaching over her. Then I slammed my hips into her ass in a sudden hard surge that made her yelp and sent a spray of her tasty fountain across my thighs. As I drew back, I slapped her ass and made her yelp again and then I thrust into her.