For #1788 I know that very feeling.
When I was little, my mother wore non silky non seethrough gowns to bed, then about the time I was 12 when she was ? 28, she become widowed in '97. She didn't seem to care, my dad was hardly ever around anyway. The day she was widowed, her wardrobe changed.
She'd started wearing little clothes, mini skirts, short shorts, seethrough gowns, bra tops, the works. Seeing her dressed like that got my cock hard, sometimes I cummed.
When I was 12, I was on the local dive team for the boys 10 to 12 division, our speedos made our cocks hard. It was almost a week after she was widowed, when I got home from practice, I was in my hoody with my team speedo on almost underneath.
10 or 15 minutes after I got home, my mother got home, she was in her biker jacket, hot pants sheer pantyhose, I thought she was sexy when she said "Hey honey, how was diving practice?" I said "We didn't practice, our coach got talked to the guys about a couple of upcoming swim meets. When he talked so much, then there wasn't time to practice, oh I put away the dishes." She said "Thanks for doing that."
When I was getting ready for bed, my mother softly asked "Hey honey, are those my panties you're wearing?" I said "Mother!" "I wouldn't wear your panties!" "That's my team swimsuit, here see?" As I pulled up my hoody. "That's where it says 'Regional Division II', come on really, I wouldn't wear any of your clothes."
She said "Even if you did wear my panties, I won't get mad, really honey, I think you'd look sexy in my panties." I said "Even so, I still wouldn't wear your clothes, right now, I'm going to bed."
When I took my hoody off my mother asked "Have any of the girls at school told you how sexy your ass is?" I asked "What would I want with girls?" She said "I'm sure they've seen you in swimsuits many times at those swimpool events and when I've been there honey, I've heard some girls saying so too, you're lucky you got my ass genes."
She turned her hot pants clad ass at me and asked "Like my ass honey?" I said "I have to admit, it is nice and sexy." She said "Oh honey, you're so sweet, I'll come in and kiss you good night."
Then when she came in my room, she was in a thigh high sheer seethrough gown, her bra and panties were to die for, her tummy was a sexy turnon. Instead of kissing me good night, she asked "Honey would you like to sit in the spa with me?" I said "Ok." Then when I saw my mother strip to her panties and bra, my cock got all big and hard in my speedo.
Then she asked "Have you had sex before?" I said "No way!" My mother said "Mommy would love to have your sperm fill her tummy." Then we both were naked in the spa, so when we both had sex with each other, my mother moaned the whole time she felt my hard cock wiggle around inside her till a huge gush of cum filled her pussy. Were we got done, she said "Oh honey, oh that felt good." Then we both went to bed.
Then just a little more than 2 weeks before I was 13, was my last diving event before I was aged out, I didn't want to continue on anyway. When I got home, I was in my team speedo and team windbreaker, I found my mother seated in the middle of the couch, her tummy made almost a double roll between her bikini bra and short shorts where she had both her hands across the front of, she had this glowing smile across her face.
Then she said "Congratulations honey, we're going to have a baby!" When she said that, my cock grew big and hard in my team speedo when I took my windbreaker off. Then she said "Wow honey!" "I love how big your penis is, it makes you look sexy in your swimsuit." I said "I sure love how you're dressed." She said "You're so sweet honey."
When my mother stood up, her tummy was still flat, though there was a barely visible baby belly under the front of her still fitting short shorts. When I felt our baby, my cock wiggled hard in my team speedo. When I stared at my mother's tummy, I was impressed by how my cum was making her tummy grow with our baby inside.
Then months later, I was already 13, my mother was 29, it was '98. Her growing belly looked sexy in her bikini. We were walking at the edge of a flowing river when some college age guys stared at my mother's belly and their cocks got hard in their shorts and speedos.
Then when she put on her short shorts for pregnant ladies, the front of them were sexy as they were stretched way over her belly. There was very little of her bare belly showing off between her shorts and bikini bra. I thought she looked even sexier dressed that way than just in her bikini.
For #1788 I know that very feeling.