Sneakily Enter Her From Behind.

You start wriggling your hips, your dick eagerly grinding against her as you seek out an entrance. Heather feels this and starts rocking back and forth. Your grip on her upper body starts to wane and you give up on your quest for her treasures just so you can keep holding on. The two of you tumble for a bit, locked together, cocks, pussies, and breasts rubbing against one another. Heather has the better grip on your torso but you have your legs locked against her hips and rubbing against her cunt. While the two of you try and figure out a way out of this you watch as the gas slowly begins to grow closer.