I had no idea what she was on about, the knickers were definitely hers so she couldn’t be thinking they belonged to another woman I might be seeing,...so what was it?I shrugged and gave her a quizzical look and simply said sharply, “What?”“My knickers,” she said, “they seem to be full of dried spunk stains and I wondered if you had been using them to pleasure yourself!”I smiled and gave a half-hearted laugh & said,“No babe it has got nothing to do with me.”Which was actually the truth.She smiled. "Come here, baby," Terri said softly, holding her arms and hands out to him.Tom grinned and slid up over Terri's body then lay down over it, supporting most of his weight on his elbows and forearms.Terri held his head in her hands and pulled him down for a long, sweet kiss. They were still kissing when Terri raised her legs on either side of Tom's hips and wriggled her hips against his hard cock. Tom got the message and with a bit of adjustment of his hips, his cock went to her vaginal opening. Day went normally. I masturbated 6 times on that day thinking about her in two piece and next day she again wants to take so she is in her bra and panty. I too was in my underwear and we both were taking sun bath after that I asked her please mom, allow me to hug you and begged her and she told ok. I hugged her tightly so that her boobs will press my chest. I was in heaven and she would have felt my hard rock dick on her. She pushed me and trying to go in. I went behind her and hugged her from. Between her fingers my balls I felt the pressure building up in my cock and I could my the spunk rising through me.I turned quickly to look around the train checking we were still alone but the thought of being caught just made it even more exciting. Her shirt was quickly discarded and as she stood up hitching up her skirt she straddled me as I sat, slowly sinking herself onto me. Now I could see her body in all it's glory, perfectly small well trimmed ginger pussy and perfect cunt lips, her.