The stranger

'Mmm, would it turn you on to watch him touching my tits?' Kate said.

'Hell yes' I replied. 'Go ask him'

She walked over to him, and other people on the beach were keeping a close eye on the situation, wondering what was going to happen. I couldn't quite hear the conversation, but could tell that he wanted to.

She kneeled down, facing away from him while he oiled up his hands. He positioned himself behind her and then reached round, cupping his hands over her breasts and starting to rub the lotion in. Her eyes closed again and I could see her breathing getting shallower. This was turning me on so much, and before I knew it, my hand was down my shorts and I was wanking whilst looking at the scene.

He started to flick her nipples, getting a bit more sexual, and at about the same time she put her hand down her costume and started touching her pussy.

She mouthed at me 'I want a fuck'