Back in BG2 I enjoyed watching Haer'Dalis romance Aerie .
Maybe Astarion can chase after Lae'. That would sure as hell be entertaining to watch !!
Ehm if you pair up with Wyll, Gale or Shadowheart, Lae'zel will spend the night with Astarion. You can talk to her afterward, and she will tell you that he was an extremely enthusiastic partner.
She's less keen about Wyll's prowess (her choice if you romance Astarion) going so far as to request to stop talking about their night together.
