“Got the present?” Nishi asked as him and Yosh snuck through the quiet house in the morning. 
“Yes, all ready!” Yosh quacked quietly behind him. 
The pair silently opened the door to his parent’s room, inside, Yosh’s father was sleeping while making quiet little duck noises under his breath. Nishi slowly slid the covers down, Yosh’s father wearing a tight pair of briefs underneath. Yosh looked away while Nishi giggles and enjoyed the site. 
“Our first mission is getting those off!” Nishi told Yosh. 
“Can’t we leave those on?” Yosh wondered. 
“The gift wouldn’t work that way!” Nishi told him as he climbed up on the bed with Yosh. “Here, hold his leg up.”
Yosh did as he was asked, holding the duck’s smooth orange leg up in the air, making it easy for Nishi to take a hold of his ducky underwear and pull them up!
“Oooh...” Nishi’s eyes lit up as the daddy parts came into view. “He looks just like you, Yosh.”
Yosh couldn’t help but peep at the daddy duck, his tight little feathery balls cling close to his underbelly, and his penis was short and tight, wiggling slightly as the two moved around on the bed. It did look a lot like his! It made Yosh happy to know they weren’t too different down there. Nishi helped prove the point by tugging Yosh’s diaper down. The yoshi duck blushed, but did look back and forth for a moment, as did Nishi. 
“Alright let’s get his diaper on!” Nishi instructed Yosh to hold up his father’s leg again as he grabbed the present Yosh carried in and slid the diaper under his butt. “There we go!”
Yosh grabbed some baby powder and sprinkled it all over, somewhat thankful to block out the embarrassing view. The white weenie now looked even more like Yosh’s! 
However after that the two friends helped diaper up the daddy duck. By now they’d learned Yosh’s dad enjoyed diapers, so they snuck a pair on him for Father’s Day so he could enjoy sleeping and waking up comfortably in them. Yosh and Nishi weren’t used to being awake this early, so they cuddled up to the padded papa, wrapping their legs around his and resting their heads on his feathery tummy. 
“Happy Father’s Day daddy,” Yosh cooed in his sleep. 
“Yeah, Happy DILF Day.” Nishi nodded happily.