You nod

You bob your head in a nervous nod, your alarm at having something so big going inside you warring with the way your body is aching for more.

Brushing your hair away from your face and keeping his eyes locked with yours, Robert begins pushing his cock inside you one inch at a time.

You let out a pained gasp as the head makes its way in, crying out softly, "I-it's t-too big..."

Robert gives you a reassuring smile, but continues to slowly push his manhood deeper into your ass. "You can take it, love. Just loosen up more."

When you continue to look panicked at the feeling of an enormous object filling your rectum, he leans down and kisses you roughly. You're caught off guard, and your head spins as his tongue skillfully explores your mouth.

While you're distracted, his cock slides deeper and deeper inside of you, and as he breaks the kiss, you feel his hips make contact with you from below.

"See? You're a natural." He smiles at you as if he's pleased, and you feel yourself oddly elated that he's happy with you.

You can still barely believe he's fit his whole cock inside of you, and you feel a little funny inside where he has his manhood, though the pain has dulled quite a bit.

Taking hold of your hips, he begins making slow, gentle movements, letting you adapt to the presence of his huge cock inside of you.

Pleasure more and more replaces pain as he gently makes love to your boy-hole, and soon you're moaning softly while Robert fucks you with smooth, deep thrusts of his cock.

You reach up and begin stroking yourself as Robert picks up the pace, his breathing growing rougher as your no-longer virgin hole squeezes around his thrusting cock.

His body shakes as he nears orgasm, and he begins fucking your asshole harder and harder with each thrust, making you quiver uncontrollably.

He lets out a grunt and exclaims "I'm cumming! Nngg! Bear my child!", obviously preparing to blast his cum into your womb as much as possible.