Jaws dropped when Corinne asked Nick told hold her breasts while they flirted during the photo shoot in a pool.
"I was a bit shocked by how some of the girls were behaving (although I probably shouldn't have been)," Ali, a 32-year-old mother of one, wrote in her blog on Tuesday.
Ali acknowledged Nick probably had an attraction to Corinne but didn't appreciate the bachelorette's desire to make the other women jealous and upset with her public displays of affection.
"Overall, I am pretty disappointed with how some of the girls are handling themselves," Ali wrote.
"Brittany asked Nick whose boobs were better -- hers or Corinne's. Corinne got naked on her first date. And [Lacey Mark] said, 'What if I had taken my shirt off -- would I have gotten the rose?' I know she was trying to make a point suggesting that's what Nick wants (and I think Lacey is very sweet). But in general, there is just too much focus on sexuality this season already."
Ali, who welcomed six-month-old daughter Molly with fiance Kevin Manno in July 2016, added that even jokes in the episode were made in poor taste.
"Even the boob birthday thing at the end. It was funny, and I can appreciate humor, but again, it seems like too much for it only being the second episode," Ali said, referencing the cupcakes Alexis Waters ate with Nick to celebrate the first anniversary of her breast implants.
"As a mom, I sat there and watched the showing, thinking, 'I never want my daughter to think she has to behave this way to find a good man.' I'm not trying to put the girls down by calling them out on this either."
Ali simply noted that Season 21 makes her "sad, I guess" so far, and she hopes the women "know they are better than this."
Based on previews of the rest of the season, it doesn't look like the sex is going to be toned down any time soon.