Just keep on watching, and see what those two have in common

Leaning against the wall and panting in exhaustion after her powerful climax, Emma remained by the window for a while and just kept admiring the two sunbathing girls below.

After a couple of minutes they shifted around a bit, so that Lucy was lying on her back, while Rachel moved closer and rested at her side. At first it looked like they simply kept talking to eachother, perhaps sharing something a little more confidential, but then Rachel started brushing her free hand across her friend's well toned tummy...

Emma watched them quietly, while they seemed to think that there was none around to see them, and realized she was holding her breath when Rachel's hand cupped around one of Lucy's perky breasts. They kept going like that for a while, with Rachel's groping becoming more and more intimate, until eventually she leaned in and kissed the other girl square on the mouth.

By now Emma's cock was already back to full erection, just from her watching those beautiful girls touching like that, and she just couldn't keep from starting to jerk off again. Soon enough those down on the lawn was doing a little more than just making out, and Emma could feel her new member twitch and throb in anticipation as each of them stripped out of their bikinis.

Even with a high wall separating the little lawn from most people on the outside, it was still quite daring of the two to undress where they could still be seen from the house tha they lived in. Admittedly there was few men living on this side of the building, but it was surely no guarantee for one or more of them to catch sight of them.

Emma wasn't quite sure what sex she actually belonged to anymore, but at the moment she was definitively male, since all she could think of was those hot young bodies impaled on her shaft!

But how would she get to them? Or should she just keep on watching, while jerking off once more...?