People automatically assume that Gladio is a dominate lover that always tops and takes control of sexual situations. However, Gladio is the exact opposite of this assumption. Gladio loves to bottom and let Ignis control their sexual activities. He likes being told what to do and obeys Ignis's every command. He also enjoys being the little spoon in their cuddling and loves it when Ignis uses affectionate nicknames (such as baby, or darling). In turn, Ignis loves dominating his powerful lover and finds it amusing when Noct and Prompto incorrectly joke about their sex lives.
Gladio/Ignis, bottom Gladio