Title: Mukuro x Kyouya
Summary: Jealousy is a useful thing.
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The first person Mukuro introduces as his girlfriend lasts a month until Kyouya has her giggling in his lap. The second one lasts two months and a half until Kyouya has the boyfriend feeding the Cloud chocolate covered strawberries.
The difficulty in convincing each of Mukuro's partners grows harder but Kyouya has some rather useful tricks up his sleeve.
The time interval decreases, until on one memorable day, Kyouya drops into the newest male's lap and the man abruptly starts trying to strip the Cloud's clothes off him.
Tsuna gapes, his arm still raised for a handshake in greeting.
Eventually Mukuro starts introducing people to the Vongola Guardians that are quite frankly the most odious people in existence. Since Mukuro is rather vain, they're all drop dead gorgeous, but they still make even Chrome want to punch their throat from how annoying and pointlessly cruel they are.
Kyouya replies by breaking them and moulding them into slaves.
Mukuro stares at Kyouya, two weeks into his newest partner, and the Cloud stares right back, lounging across the three-seater couch in his yukata. Mukuro's supposed boyfriend is giving Kyouya a foot massage, the scent of lavender filling the air from the oils being used.
The man keeps complimenting Kyouya, as well. The newest purrs about how smooth Kyouya's skin is and how beautiful his legs are, understanding that Mukuro is sitting across from them but not caring. The man lifts one of Kyouya's knees and presses a kiss to the inner part while his other hand slides up a thigh and disappears into the yukata.
Kyouya smirks at Mukuro in complete and utter victory.
Mukuro breaks the world record for javelin, using his now ex-boyfriend.
Tsuna cries tears of relief and joy when the two finally agree to start dating.