Gladio can tell it's uncomfortable for his mate, and he presses kisses along his neck and down his spine, slowing down a little and trying to be gentle as he rocks into Ignis.

"I know it's different, babe. I'll go slow until it's good." He promises, and a lot of his need is already soothed from just starting to claim his mate. He purrs in contentment behind him, frame large and wide behind him. "Fuck, you feel so good for me- I want you to feel good too..."