For the one in the picture.. I think there is 2 flaps in the crotch area that when you sit down open. you would then need to move your underwear to the side to go number 1.. not sure how you would do number 2.
Had a great day with the boys! Watched Puss in Boots...still adjusting to the "friendship" (for lack of a better word) with DH's x. We are doing weekly meet ups for story time and movies. She is extremely nice and its a bit unnerving but we will see how it goes. Got treated to pizza by a guy from church. Then the boys napped....I think I've been reading 50 shades for close to 2 hours. I'm hooked.