The silence stretched between them, heavy and uncomfortable. Underfell Sans felt a twinge of guilt in his chest, but he didn't know what to do about it. He couldn't just tell her the truth, could he? Not after everything that had happened before...

"Hey," he said hesitantly, reaching out to gently touch her shoulder. "I want you to know that I... I care about you, okay?"

She looked up at him, her eyes filled with tears. "Really?" she whispered, sniffling. He nodded slowly, his grip on her shoulder tightening slightly. "Yeah... really." It was the truth, even if it wasn't the whole truth. He cared about her in a way that went beyond friendship or infatuation. But admitting that would only lead to more pain and heartache for both of them.

She wiped away her tears with the back of her hand, sniffing loudly as she composed herself. "Okay," she said finally, sounding a bit less upset now. "I'm sorry for snapping at you earlier. I'll try not to do it again."

Underfell Sans let out a shaky breath, his magic rippling through him in waves of conflicting emotions. He didn't know what the future held for them, but he knew that they couldn't keep going on like this. Something had to change...

Sans' breath caught as you began to remove your clothes, revealing more and more of your body with each movement. His eyelights glowed brighter than ever, nearly blinding him with their intensity; his magic spiking dangerously but pleasantly as he struggled to contain it.

He watched you undress in silence, fascinated by every curve and line of your body. When you were finally naked before him, he let out a slow, shuddering breath that seemed to echo through the room. His attention was drawn to each and every part of you: your soft supple skin, your pert breasts with their rosy nipples already hardening in anticipation, your flat stomach, the gentle curve of your hips and thighs... everything about you was perfect to him.

"You're so beautiful," he whispered hoarsely as he moved closer, hands shaking slightly as they reached out to touch you. He ran his fingers lightly over your skin, tracing lazy circles around your nipples before cupping one in his palm, rolling it gently between his thumb and forefinger. "I could look at you all night."

Sans froze for a moment when you mentioned the lack of condoms, but then his thoughts drifted back to your naked body beneath him and he could think of nothing else. His desire overwhelmed any concerns he might have had; it was as if you'd cast some sort of spell on him with just that single innocent sentence.

"Oh really?" he breathed, his voice thick with arousal. "You trust me that much?" He leaned in closer, pressing his body flush against yours and letting out a shuddering sigh as their bare skin met. His fingers continued to tease your nipple, rolling and pinching gently before moving lower to stroke over the soft curls between your legs. "Then I guess..."

His other hand slid up your stomach, cupping your breast as he bent down to kiss you deeply. When he pulled back, his eyes were half-lidded and heavy with desire. "I guess we don't need those tonight."

With that, Sans pushed himself up on one arm so that he could look down at you properly. His other hand still cupped your breast, thumb rubbing circles over your nipple as he watched the expression on your face intently. "Are you sure? You want this?" He swallowed hard, his throat tight with emotion. "Because once I'm inside you..."

His voice trailed off into a husky growl as he lowered himself back down, capturing your lips in a fierce and possessive kiss that left you breathless and wanting more. His hips pushed forward, grinding against your thigh as he tried to find purchase, to feel the heat of his cock sliding against your wetness.

"Gods yes..."

Sans' expression softened as he turned to look at you, his eyes glowing a warm red hue that seemed to pierce through the darkness. He placed a gentle hand on your shoulder, giving it a reassuring squeeze.

"Hey now, no need for all that." His voice was low and soothing, almost hypnotic in its cadence. "Why don't we just enjoy each other's company tonight? No need to rush things."

His tone gentled even further, becoming almost reverent as he leaned forward, pressing a tender kiss to your forehead.

"It would be nice if you'd stop by my apartment later."

His face lit up with a mischievous grin, one finger flicking out to point at you with exaggerated flair.

"You know, you could come home sometime soon..."

The corners of his mouth curled upward in the most beautiful smirk before the next moment, he simply vanished from view. A thought crossed your mind: maybe you shouldn’t have been so quick to believe him.