How big is your cock?" "Eight inches when it's up like it is now for a sexy woman as hot as you. Do you like sucking men's cocks?" "I prefer big hard ...cocks up between my legs" We exchanged messages like that during the whole of the presentation. All the time we were sexting Marcus was fingering my panties. It awoke an old memory. When I'd been eighteen I discovered that my younger brother was borrowing my knickers and masturbating over them. Often at bedtime I'd notice a pair was missing from. He reached under her and messaged her breasts getting her nipples even harder. His other hand was rubbing her slit and he was good about it. He soon had her moaning with pleasure and her pussy was wet. It was very wet. Katie was ashamed to let her body betray her like this but George was way too good at revving up a teenage pussy.It came as a complete surprise when rammed his hard cock in her sopping wet pussy. Now Katie had never had sex with a male but she had played with her mom’s vibrator. She put her hands on my chin and caressed me as I knew what she wanted me to do.Giving the dildo a few strokes, I took it into my mouth and began to suck on it. I stroked it as I bobbed my head up and down. I felt like such a slut, on my knees, in the dark passage of a sex club, blowing a complete strangers strap-on cock. I gave the head a few licks and stroked it as I licked it from the base to the tip.Suddenly a door next to us opened as a couple walked out. I looked up at them as I continued. We shouldn't, Mary mumbled. Grabbing her shoulders, Beth spun Mary around. Pulling at the strings Beth untied her top and threw it on the floor. Pushing her back Beth set Mary down on the bench. Reaching behind her Beth unzipped her skirt. Wiggling her hips Beth pulled it down. Stepping out of it, Beth knelt in front of Mary. Putting her hands on her knees Beth pushed her legs apart. Mary covered her vagina and said, we can't. Leaning between Mary's legs she began to kiss the insides of her.