You continue to finger your moist pussy, spreading the lips and shoving your fingers deep inside with one hand, the other alternating between your giant, lactating tits, your long, girly nails providing a shock every time they brush against your nipples. You moan louder and louder, forgetting why you ever held back, when Melissa came out of the bathroom, turned on by your moaning.
"Umm... you okay, Abby?" Melissa said right before she walked into the room you were sitting.
"Huh, I guess my name's Abby now. That sounds right." You thought as you kept touching yourself, near the point of orgasm.
"Abby... OH!" Melissa said, finally walking into the room, standing still with her eyes wide open.
You couldn't help but keep masturbating. However, when you noticed a bulge in Melissa's pants, you were finally pushed over the edge.
"Oh I'M CUMMINNGGGG!!" You shouted out, as a gush of cum came out of your pussy. As soon as that happened, however, two large streams of milk flew out of your giant tits, covering Melissa in your milk. You were about to apologize, but as soon as she gets some milk in her mouth, her shocked face changes dramatically. Suddenly, she had a lustful look on her face, any shock or surprise gone.
"Mmmm..." she says in a calm, aroused voice, while she licks your milk from her fingers, her erection bulging even harder. She walked over slowly, teasing you with her large breasts and pulling her skirt down, never breaking eye contact.
She leans and hugs your naked body. You feel her erection poking your thickened thighs. "Can I have some more milk... from the source?" She says, lust in her eyes.
"Of course you can, beautiful." You say. As soon as you finish your sentence, she wraps her lips around one of your huge tits.
The feeling was incredible! It had to be at least ten times better than your masturbation session! You never knew you needed this more than now.
Even better, you feel Melissa's hand go towards your moist and waiting pussy. "IT FEELS SO GOOOOODDD" You yell out as soon as her fingers start massaging your outer pussy lips.
She pauses for a second before surprising you. She had been submissive this whole time, but before you could even say anything, she shoves one of your tits into your mouth and forces you to drink.
The taste is like nothing you've ever had before. The wonderful taste of the cream that had was disgusting compared to your own milk. The thickness of the sweet cream made the whipped cream from before taste like water.
You failed to notice your own hips and ass widening, giving you a ridiculous hourglass look while your waist pinched in. Your pussy swelled up, fluids gushing down your leg as you lay on your back, Melissa groping you as she drank from one of your giant tits while you drank from the other.
You were in heaven and so was Melissa. Melissa had also begun to change, your wonderful milk changing her. Her hips, ass, thighs, and breasts expanded as well, but at a much slower rate. Her breasts would start lactating soon as well, though she wouldn't be anywhere as huge as you.
In her pants, her balls starting swelling up as well, filling with rich, creamy semen that you would soon be sucking on, while her cock grew slightly.
Before either of you could go any further, however, you and Melissa orgasm at the same time, semen running down her legs as you splash her with more milk and sweet cum. The two of you pass out, holding each in the living room of her apartment.