As I came up to them I could hear small moans with low irregular whimpering sounds escaping my sisters lips as she begun to writhe on the ground at the same time trying to push her pussy towards Jenny's thumb so as not to break contact. Jenny had moved her hands so that they rested on top of my sister's calves with both thumbs now blatantly massaging her cunt through her bikini bottoms that were now drenched with her juices.

Jenny now noticed me and smiled her tongue licking her lips suggestively, a reminder of what it had been used for earlier in the day, Tom on the other hand...