I got to thinking about the first (and really only) time I deliberately set out to seduce a gal by using exhibitionism.
I was in university, and she was in one of my lectures. At the time she hung around with this guy, they'd meet after our lecture (he wasn't in that course) and sit out on the grass at lunchtime chatting. It was a little grassy section away from the main part of campus, with bushes around. Not too many people went there. They never kissed or were physical with each other, except in a friendly, pal-like way. I noticed over a period of time that she was looking at me rather a lot, so I decided to go for it, building up over a period of time.
First of all I wore a pair of tight jeans where I had a rip in the crotch. It was quite small, but if I lay half reclined on the grass with one leg propped up, bent at the knee, I could place myself so she was staring right at my crotch....her boyfriend's back was to me, she was facing. At first I wore panties - red - and just lay there reading. I did that for a couple of days, then started slowly stroking myself in that area.
By the end of the first week, I was no longer wearing panties, and I was quite openly masturbating when I could.
The second week I started by wearing cutoffs. It was really hot too, so I wore a crop top. I slid my finger in the side of my shorts leg and played with my clit. Panties on again at first, but no bra. Then one day I took my top off to catch some sun, and lay on my front. I made sure I left before they did, so I had to sit up to pull my top back on, and as I sat, I spread my legs so my pussy was directly facing her and my tits were pointed straight at her mouth. My pussy hairs peeked out of the shorts legs, and they were so tight against my cunt you could see the outline of my slit.
Next day, I took the cutoffs off as well, and sunbathed just in my bikini bottom. I slowly circled my pussy with my hand, and arched my breasts to the sun.