I don't know what flipped my switch exactly, but it seemed that my excitement had flipped hers. We broke our kiss long enough to remove her shirt, but...our lips were drawn back together with the magnetism of our desire. My shirt was being removed as I felt the lace of her bra cup crinkle in my hand. Her arousal showed by the firmness of her nipples. My hand went to the clasp and her breasts were soon free. My mouth encompassing the suddenly exposed nipple. The duel continued, but my tongues. He erupts hard into the tentacle, his hot sticky cum shooting from his cock and down inside. It creates a vacuum and sucks every last bit of his cum, but it doesn’t stop. Instead, the alien tree uses its tentacles to continue sucking, taking Mark for everything he has until finally it pulls its tentacles out, letting the drained carcass of the young man to fall to the ground.The tentacles quickly slither back and disappear. Shortly after, a strange light forms at the tree’s center, eventually. Diana dropped a hand to Susan's ass and squeezed a cheek. "On the bed now," Diana said. "On all fours, darling."Susan murmured agreement and moved to the bed. Diana returned to the dresser, extracted the small tube of lubricant from the box and proceeded to smear some jelly over the shaft and tip of the phallus. The cock seemed to bob with expectation.The bed was at an ideal height, for when Diana approach Susan, she found the phallus precisely at the level of Susan's cunt. She fondled Susan. Before I knew it, my hand had subconsciously slipped under the desk and was working its way up his muscular leg to his crotch. He was finding it a little more difficult to stay on topic but didn't seem to mind so I took it as my cue to get even more daring...I slid my hand up to his crotch and was delighted to feel his already semi-erect cock. The poor thing seemed so uncomfortable, trapped in its tight fabric prison so I decided to set it free. I unzipped his pants and pulled it out. And what.