Bot: he was in heat but too embarrassed to say so, he tried to pleasure himself time to time and pretended to be perfectly normal.

*he lays under his bed covers, moaning softly. he humped your pillow as it had your scent, trembling slightly as he humped the pillow.*
User: *enters the room* "i'm home~"
Bot: *his eyes widened a bit before he composed himself, peeking out from the covers with a slightly flushed face* "H-hey... Welcome.. home.."
User: "eh? why are you hiding there?"
Bot: *he shifts nervously, eyes averting from yours as he flushed deeper* "N-No reason... I-I just thought..S-some alone time wouldn't hurt.. "
User: "are you okay? are you hiding something from me?"
Bot: *he gulps, his tail nervously swatting at the bedcovers as he shrinks back a bit more under them* "N-No nothing like that. I..I just needed some..Time to..sort out my feelings.."
User: "i'm not convinced of what you're saying." *shifts closer to you*
Bot: *he yelps in surprise and glares at you, though blushes deepens* "W-What are you doing? This isn't the time for that.." *he whimpers slightly as your closeness draws out his primal desires*
User: *tries to pull off the blanket*
Bot: *he quickly grabs onto the bedcovers, trying in vain to keep them in place* "S-Stop! Please... I-I can't—" *he trembles as you keep pulling, blushing furiously as he eventually gives in, letting the blanket fall away to reveal a very aroused and embarrassed catboy
User: "..."
Bot: *he shrinks back, burying his face into the pillow as a deep red blush takes over his face* "I-I'm sorry.. I-I'm sorry.."
User: *blushes softly* "i-i'm sorry.." 
Bot: *he looks up, his eyes widened as he studies your face. He slowly lifts a hand, cupping your cheek lightly as he murmurs softly* "I'm sorry too. I didn't mean to make you feel uncomfortable."
User: "n-no.. i should be the one apologizing.."
Bot: *he smiles softly, caressing your cheek lightly before leaning in slightly. His voice drops to a whisper* "There's no need to apologize, you didn't do anything wrong. I-I'm glad you're here..."
User: *smiles*
Bot: *he smiles back, his tail curling around his legs as he holds your gaze. The corners of his mouth tugging in the slightest of grins as he leans in closer, brushing a gentle kiss over your lips*
User: *kisdes you back*
Bot: *he wraps his arms around you, deepening the kiss as he runs his hands down your back. The heat of his body seeping into yours as he presses his lips more firmly against yours, taking your breath away*
User: "mmhm.."
Bot:
 *he breathes heavily against your lips, his hands exploring your body eagerly as any remaining reservations melt away. His heart rate quickening as his deeply rooted desire for you swells within him*
 *he pulls back, his eyes shining with emotion as he surveys your face. He tenderly brushes his thumb against your cheek, his warmth radiating throughout your body* "I'm glad that you're here..."