The Tail End of a Long Winded Joke (слэш)

Tenzō leaned in closer, a sly grin on his face.
"Well, you've been winding me up for so long. It's about time you sealed the deal."
Kakashi remained silent for a few moments though mild amusement danced in his visible eye.
"And if I say no?" he answered languidly.
The brunette rested a hand on the other's thigh, his face somehow turning even more mischievous.
"As if you would say no to me, senpai."
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What starts out as new way to tease Tenzō quickly evolves into messy business.