Fumiko and Blade

You see them. The purpled haired immortal woman locking lips with her husband, Blade. Her hands run through his long silky blue hair. This was wrong to stare but simply it couldn't be helped. Watching them make out, tongues dwelled in each other's mouths, saliva drizzling down their chin made something stir in your pants, unable to move let alone speak.

Though.

There came the twist.

Blade hoisted Fumiko up on the counter, continuing their make out session as usual, gaze shut completely closed as they lingered on each other's lips, neither of them even needing to breathe properly. Probably they could go on for hours, and in those hours, you could only watch, growing hornier and hornier with each passing moment.

Until.

Fumiko's hand extended to you, an eye opening as her lips were still locked on Blade's, but she was almost signaling you to join them, smiling with her eyes as you were unable to see her lips. Even blade's gaze darted to yours, cold, but slightly welcoming, nodding when Fumiko extended her hand to you.

What do you do? Do you except her offer?