Momo: "Hmm... I can think of a few. My favorite changes often though. Right now, it's the feeling of wetness after finishing! The breeze on my wet skin, the feeling of slightly dripping down there, knowing that if I don't wipe then for the next few minutes I'll be casually dripping on all sorts of things... so hot!"
Nana: "My current favorite is the tingling sensation that only happens if I pee while standing straight, hands-free. It's an incredible feeling, like a tiny vibrator going off inside my bladder, and I never get that feeling in any other way."
Haru: "For me it's gotta be the relief of just relaxing my whole body and letting it all out, but specifically while I'm being held by somebody or hanging from someone's shoulders! Feels so warm and fuzzy, its like I could melt!"
Yuki: "Definitely the feeling of peeing while somebody else is holding me down there. Not stroking! Just holding. It feels so naughty..."
Fuyu: "U-um... w-well... t-the sound... of w-wetting? L-like, while sitting on a pillow or something... or in m-my clothes..."
Yui: "I cannot think of an answer for this question."
Nami: "The warm feeling inside after letting it all out after a long time."
Malie: "Wet legs! I don't pee on myself on purpose, but when my legs do get a little wet, I like to leave them wet and enjoy the feeling like a little treat! Being seen like that is fun too."
Ruki: "Uh... I like that almost every time I pee, I get at least half hard if I wasn't already... does that count?"
Alea: "...no? I-I mean I can't choose a favorite..."