Try the back door

You grab on to Lily's butt again, drawing a sleepy moan from her as you spread her crack wide and drop a full gob of spittle right on her puckered little hole.

"Nuh...?" She groans as you lube yourself up, sliding the fat head of your cock against the wet lips of her pussy. She tries to push back, beckoning you inside, but you've got her firmly pinned against the log.

Then finally you show your intentions, making her head shoot up as you slide in position.

"N-no...!" She whimpers as you slowly start pushing, both of you watching as your bulbous cockhead is swallowed up by her tight little butt. "Oh... Oh, god..."

Despite of her continued objections, it's easy to tell that you're not the only one enjoying the action as your cock plumb deeper down her ass. Soon enough she's back to moaning again, while trying her best to relax to make for the minimal amount of friction.

Once fully inside you give her just a moment to adjust, and then slide yourself completely out of her to enjoy the sight of her gaping asshole. Then you apply another layer of lubricant, and finally start fucking her in earnest.

Lily mostly just groans and gasps throughout the ordeal, but doesn't try to stop you again. Eventually you're doing her pretty hard, almost like you'd be slamming her cunt, and Lily seem surprised herself that she's able to take it so well.

She doesn't cum along with you though, and when you finally pump your hot load into her bowels she just slumps forward over the trunk, seemingly happy to simply black out.

You push your cock inside of her a few more times, for good measure, and watch your spunk oozing out around the sides of your shaft.

Then you leave her alone and get back on your feet again.