Yulie chooses her mouth.

Even if his threat, of her growing more addicted and more fertile with every dose, meant she would only double her breeding later, she had to avoid getting knocked up now... if she wasn't already from their first encounter. "Please... do it in my mouth."

"Do what, Yulie?" He leaned in, just out of biting range.

"Please... put your... penis... in my mouth."

"Oooooh, I'd love to keep teasing you, but you sound absolutely thirsty!" Kazex was upon her, his tiny hands and feet clawing up her breasts until he was at eye level and then, with a passing lick from her chin to her forehead, over it. His hideous foot of goblin dick soon followed, lunging towards her face and punching her mouth with such force as to stun her. Her lips parted to gasp, and it was the last breath she'd manage for the next minute of meat being shoved into her throat. Kazex managed to get his feet onto her shoulders and slowly lift himself over her head, forcing her to lean back and make a nice, straight channel for him to shove down into her esophagus. Tears immediately started to stream from her eyes as she gagged, and the flared knot of his base slipped past her teeth and threatened to inflate enough to dislocate her jaw.

Sensing this, Kazex rose out of her just in time, letting the veiny ball of meat hover before her lips as he started to ejaculate straight towards her stomach. "Oooooh, way too sensitive! Won't even be able to last a minute, but it feels so fucking good," the vulgar little greenskin moaned.

Yulie cried more, and squeezed her thighs together as she felt the "catalyst" have its effect: her libido was through the roof as her flesh only just began to absorb his first dump of cum inside her. Though she could hardly grasp the concept with her medieval education, the rapid ovulation taking place inside her was almost palpable; she felt how dangerously fertile she was, now.

When at last the meat left her throat, she was left coughing uselessly; most of the seed was already resting firmly in her belly, packing her stomach so full that she felt ready to sleep. The goblin pushing himself between her thighs was all the warning he saw fit to give her that now was not the time for a satisfied nap. "W-What are you doing?!"

"Eh? Breeding you, you dummy, kekekek!" Sure enough, his cock was already enlarging anew, and his balls were almost cartoonishly inflating full of seed once again. "But boy, I'm going to have to eat all of the next boar I find tonight after all the little Kazoos and Kaziis I put in you!"

"W-Wait, please, you said you'd only use my mouth!"

His cock was already lined up with her slit when he wagged his free finger at her. "No no no, I said that's what I'd do, not that that's all that I'd do! You humans are really bad at contracts, you know that?"

"P-Please!"