I mean like maybe. But for the most part I think of it in terms of psychological torment/trauma/warfare/ neuroticism and heavy petting. Hanbin being a very assertive omega and yunseo wanting to submit to him more than anything. But hanbin having an intense fear of being accidentally studded, even though he prefers other omegas.

Or yunseo being studded and not minding it if it means he can better take care of hanbin, but hanbin rejects him because he doesn't really like being with alphas.

Yunseo taking hanbins smaller omega cock and thinking it feels amazing. Maybe he has a hard time taking it even though it's small. Maybe he just worships it because it's doesn't hurt him as much as the alpha yuehuaz' cocks.

If it's a situation that must involve boypussy (or even if it doesnt) fisting could be really fun too.

Idk.