He's happy to start with that

Heidi crouched over his lap, slurping frantically, her hands working his shaft as her young tits bounced and wobbled. She didn't have a lot of technique, and Frank guessed that she hadn't had a lot of cocks in her pretty mouth, but what she lacked in experience she made up for in enthusiasm.

Her head bobbed madly as she worked on him, her wide eyes tearing as she made herself gag on his meat. The **** worked just fine Frank chuckled to himself, holding her head down for a moment , gagging her until her eyes started to roll back in her head. When he let her up she gasped and sputtered, drool streaming from her mouth.

"Unhhhh….so...so good!" she gasped, gobbling him down again. She was trying to deep throat him, but couldn't manage it, although Frank was impressed at her attempt. "Guggk...gug...guk...gukkk…" she gagged as she bobbed her head, her eyes never leaving his as she sucked.

"Am I...am I good...Mr. Castillo? I'm trying...very hard... You'll make me...make me come...after?"

"You're doing fine, Heidi. Sucking cock just like you're born to it," he growled. "And sure I'll make you come. We can't have you running around in heat all day. Now get back to work."

"Yes Mr. Castillo," she answered happily, wriggling as she devoured him again, her tongue working on the underside of his fat cock, obviously determined to make him come and get her reward.