Explain the actual reason you bought diapers.

"Why don't you come into my apartment so we can talk." You say.

"Okay." Kate says.

You nervously, emerge from the stairwell on your floor, holding your diapers. Luckily the corridor is clear so you and Kate make it into your apartment without any more embarrassing encounters.

"Thankyou for offering to help but I don't really need diapers." You explain. "Please keep this to yourself but I found out that my girlfriend wears diapers. I thought I might be able to better, I don't know, empathise with her if I tried wearing them myself."

"That's really going above and beyond." She says with a smile. "My offer to help still stands."

"Really?" you ask.

"Yeah." She says. "Whether you need them or not, you're still going to leak if you put them on wrong."

"I wasn't planning on using them." you say.

"You girlfriend uses hers." Kate points out. "If you really want to understand what it's like for her, shouldn't you?"

"I guess so." You say.

"Good." She says. "Get your pants off and I'll get you into a diaper."

You remove your shoes and socks. You hesitate before taking off your pants. "This isn't like cheating or anything?" You say.

"We're not having sex." She reassures you as she takes a diaper out of the package. "I'm just diapering you."

You remove your pants and underwear and stand with your hands over your privates while she unfolds the diaper.

"Wow. These are a lot bigger than the diapers I'm used to." She comments, laying it on the ground. "Lay down here."

With your bare bottom on the padding, you lay back and Kate pulls the padding up to cover your crotch.

"It can't be too loose around the legs." She explains as she fastens the tapes. "And you have to make sure the leak guards are standing up." You feel her fingers invade the leg holes of your diaper and adjust them.

"Thanks." you say, as she helps you up from the floor.

"You should send a photo to your girlfriend." She suggests. "I'm sure she'll appreciate what you're doing."