Going to bed together.

Throwing your thick blankets onto the bed, she pulls off the T-shirt you gave her and climbs in. "You getting in or what? It's fucking freezing here." She snaps, wrapping the blanket around herself.

Wearing only your underwear, you get into bed and try to yank your share of the blanket away from her, but she's got it locked in between her fingers. Snorting loudly, you slide your arm under her and press your body into her back. She hisses loudly as you make contact, but you tell her it's either this or she has to share the blanket. She grumbles under her breath, but still pulls your other arm over her, letting you warm her up. Lighting strikes again, and she cowers under the sheets. You wrap your arms around her protectively, and you both drift in and out of sleep, occasionally being woken up by the sound of thunder or wind.

Unfortunately, your body reacts, as is it's nature, to the presence of an attractive, young woman. And even more unfortunately, Lily notices. "Are you serious?" She scowls, looking over her shoulder at you. "You're getting a boner? Right now?"

"Sorry," you shrug, "It kinda does what it wants."

Lily shakes her head, when another strong gust of wind outside sends a shiver down her spine. Moving carefully, she pulls your cock out of your underwear and sandwiches it between her thighs. Your teeth chatter loudly, but she sighs in relief, as your body pumps hot blood to your cock. "Don't get any ideas. I'm just putting it to better use," she warns you, rolling over again.

You raise an eyebrow at her. Taking a breast in your hand, you start squeezing and kneading it in retaliation. She turns to look at you, but you pretend to be asleep, while your hand keeps moving. She scoffs, and starts rubbing her thighs together, massaging your cock between them.

The test of endurance has begun.