I noticed a pearly drop sitting proudly on Ann's right nipple. She followed my gaze and picked that drop up with her forefinger which she then put to her lips. I motioned to her to look over in Ellen's direction. Ellen was in a world of her own with her hand busily clawing away at her bottom as she tossed her head to and fro. Ann dipped a finger in some of my come and turned and fed a sleek fingertip to Ellen. Ellen's reaction encouraged Ann to keep her finger in Ellen's mouth while Ellen continued to bury her fingers under her bikini bottoms.
At this point Ann grasped the waistband of Ellen's bottom and eased it over her hips. Ellen's bottom had a glistening mat of the same type of hair that was on her head. Ellen returned the favor to Ann and soon enough both girls were nude. Ann pushed Ellen's hand away from its nest and substituted her own as the source of Ellen's stimulation. Ellen reached over to Ann, and soon the two of them were twisting their fingers in each other, with Ellen also tonguing Ann's nipples, one after the other. In short order, both girls acheived orgasm.
Ann was quick to bring me a washcloth to tidy up. Ellen flushed when Ann handed her one as well. We all lay there in the sun enjoying its warmth for an additional hour or so. I made no move to cover up and Ann and Ellen also soaked in the sun totally nude. I felt extraordinarily relaxed and enjoyed the sensation of the sun all over me. I also knew that a boundary had been crossed.
As the sun's shadows lengthened, Ellen broke the silence and announced that she had to be getting home. She sat up and fastened her top in place and tugged on her bottoms. I felt her eyes examine me. "This is between the three of us" she stated and asked. I nodded in agreement and Ann said to Ellen that as far as Richard is concerned, she simply spent the afternoon with Ann, that Bob had nothing to do it.