This might be vanilla compared to others here, but when I was in college, I sniffed a girl's panties that were accidentally left in the dorm's laundry room

It depends on the context, or even moment. Sometimes they can be comically huge like in anime or AI, rather than arousing. But considering that I don't have much real life experience with breasts, I guess I'll just say as long as they are reasonably proportional and don't look uncomfortable I'm open-minded
Hi, I'm writing the series "Women's Underwear and Sibling Bond" and I'm looking to add some more sexual storylines. The only problem is, I don't have much experience with sex in real life. I read a fair amount of erotica, though. Does anyone have any ideas or advice for how I could introduce more sexuality into the series? So far WUSB is fairly wholesome, and I don't know if I want to take things in a certain direction. But I'm definitely open to other ideas
Thanks