[Snow] Migawari Hanayome-kun (Gekkan Web Otoko no Ko-llection! S Vol. 74) [mysterymeat3]

When the heiress to a political family refuses to walk down the aisle, her younger brother Mimu takes her place as the false bride — a pretty tomgirl exchanging vows with Saionji Souichirou, heir to a corporate empire. The staged ceremony gives way to a wedding night neither expected, as Mimu's nervous blush melts into a drooling deepthroat and a thick load he can barely hold in his tiny mouth before insisting on taking his groom deep in return. What began as a family favor turns sincere fast, the stand-in bride discovering that being filled suits him far better than the sister it was meant for.