I expressly design my classroom so there is a door at the back. Most of my students make an effort towards attendance and punctuality, and there's no ...need to embarrass them by having to interrupt the class and slink down to their seat. And I really don't want some poor woman, for example, whose period started unexpectedly to have to walk all the way to the front of the room and across to the door with blood running down her legs and her face the same color.Of course a side benefit is that I can. As she got close to my ass, I had an erection, but no one could see it.Jim rolled over and so did I. The sunscreen rubdown continued. I don't know about Jim and Lisa, but when Jennie touched my breasts and then went lower to my stomach, my erection pressed even harder against my suit.Jennie switched around and now her hands attacked my legs. As she continued up my thighs her fingers briefly went under my suit. I peeked at Jennie who gave me an impish grin; she pretended that she couldn't see my. I looked over and saw Mike and Tyler with their hands down each other's pants, kissing and moaning. When they stopped kissing, Tyer took his cock out of his jeans so Mike could have better access. Mike wrapped his hand around Tyler's cock again and just stared at it. I already knew what he was thinking, and he proved me right by lowering his head and giving the tip a lick, which caused Tyler to throw his head back. Mike got more daring and placed the head into his mouth and sucked gently. I'm. Again, taking his cue, he lubed his thumb with her flowing juices and then gently pushed it into her tight opening. He did not penetrate deeply, just the berry of his thumb, but the effect was immediate and spectacular. Helen’s entire midsection almost levitated up from the bed, pressing her vulva with her clit against his lips. The hand with the dildo went into overdrive, and then she crashed over the edge, spasming violently three or four times, before she pulled the vibrator out of her pussy.