Fox lay Krystal on the couch and slowly ran his (hands/paws) along her body. Krystal's breathing got quicker and quicker, the anticipation was killer. He kissed the side of he neck and licked her lips. 

"Fox!" she moaned as she quivered.

Fox smiled as he began an intense make out session. Krystal's fur started to get ruffled up. 

Fox rest his hands/paws on Krystal's two breasts of greatness. She whined softly.

Neither of the two noticed the dark shadow run past them.

Krystal squealed and Fox nipped at her stomach as his tongue ran down her body, lower and lower until-.

'BANG'

A sudden noise jolted them. 

Q: should they continue or should they investigate, write a comment down below to decide.