Keep her warm through exploration of her body

You can't really believe your luck as you watch this sexy young woman getting out of her clothes for you, and while she settles down by your side again you can barely keep yourself steady as you put a gentle arm around her shoulders. "Oh, you're shaking?" She whispers teasingly and leans into your embrace, giving you another of those smouldering looks while you're staring straight down her cleavage.

"Yeah, it's getting cold quickly." You manage a flustered smile in return, while already reaching up with your other hand to the front of her body and stroking the naked skin of her side and tummy. "It's good I got something this hot to get warmed by."
"I take it you don't mean the fireplace...?" Jessica grins, then moans ever so slightly as you dare a first grope at her breasts. They're full and firm in your palm, both nipples at attention and clearly visible as little knobs under the tight little bra.

"Mmm!" She smiles and hums deligtfully into your mouth as you pull her into a soft kiss, that quickly gets bolder while she greets you with open lips and her tongue dancing with your own. Just a moment later you've got her on her back on the ground, grinning up at you as you manage to unclasp her bra and slowly pull it off of her. "You like...?" She smiles while you ogle her perfectly shaped breasts, then giggles and moans again as you can't keep away from fondling and then kissing those beautiful globes.

Then you roll on top of her, kissing her lips again before working your way down her neck to start suck and licking at those nipples in earnest. "Y-you sure know how to keep me warm at least!" She smiles and gasps at your advances, her heart beating faster in her chest and her breath coming quicker while you work your way down her tummy. Soon enough you've flipped that skirt up, taking a short pause in your kissing to start at her thighs instead and work your way upwards.

"Mmm, yes...! J-just like that...!" Jessica moans and then gasps while grabbing hold of your hair, holding you firmly to her crotch while you lap directly at her sweet little pussy through the thin material of her panties. "Oooh, yes...!" Her moans grow louder, while her juices start soaking through her underwear.