YES oh my god. till having this huge, strong jock wrapped around his finger. he's the only one who gets to see ivan fall apart, he's the one who gets to take him apart, piece by piece. ivan is hyper attuned to till, reacting to every slight instruction eagerly. he's so excited to please till, to do whatever the other man wants because ivan belongs to till. till has complete control over him, able to use ivan however he wants and that fact only turns them both on more.
(till Also has control over when ivan is allowed to come anytime they do anything. each time without fail, ivan turns into a crying, whimpering mess begging till to let him come. till is nice, sometimes, but most of the time he grasps ivan's length in a strong, mean hold and taunts him about how, "the captain of the football team should have more stamina than this, ivan." but it's fine, truly. they have all the time in the world to work on ivan's stamina.)