He wants to seed her again.

As you want to stand up, Rick pulls you back into his arms again. Kissing you hard, you notice his cock is already rock-hard again.
Feeling his cock against your tighs, you shiver. This situation makes you horny as hell. You look into his eyes. Your body acting on its instinct of reproducing.

"I've got some more cum for you!" He says, lifting you up. You straddle your leg as he lets you down and impales you on his cock.
"Go, get it!"

You slowly start to move your hips, completely numb to what you're doing, you start to moan again.
Riding his steel hard cock, you kiss him for the first time you met him.

"Hmmm, you like my cock?" He asks.

"Aah~ Yes! Yes! I like your cock! Ouuh~!" You moan. As he starts to thrust from beneath, you speed up, meeting his hips with yours.

"Rick, if we don't stop... AAAH! You'll... knock... FUCK! AAAH~ me up!"

Rick grins. "I know you want this, Melissa. You want my cock. Do you?" Leaning back while still thrusting his hips upwards he asks.

Your nipples are ready to cut glass, as you feel his cock starting to throb again.