Kevin Federline had to cancel a yachting trip last month, after his kids contracted pinkeye.
The trip was cancelled after K-Fed noticed Sean Preston, two, and Jayden James, one, rubbing their eyes.
Kevin recognised the condition, as he was the first member of the family to contract the infection.
Kevin’s ex-wife Britney Spears also hid her eyes behind sunglasses after contracting the infection.
“Kevin had originally booked a yacht ride for everyone, but they had to cancel it because of the pinkeye," a source told Life + Style magazine.
"Everyone thinks [the infection] came from Britney's dog. The dog had it first, and then everyone else seemed to get it - including Britney."


