They're Asleep

You smile to yourself as you realise that they've actually both managed to fall asleep while laying there.

A momentary glance around proves that no one else is looking in this direction so a more overt application of your powers won't get you in trouble.

A single click of your fingers is all it needs and suddenly both girls are completely naked, their swim suits gone forever, along with their bags and the towels they were laying on. There is literally nothing in sight they can use to cover up with when they awaken.

You smile looking down at their naked bodies, drinking in all the skin they are unaware they are displaying.