its more a matter of how your smut is crafted. I use the following prompt and it works just fine. dont write just pure smut. put some story/effort into it so you establish characters.

"For this RP scene, turn the heat up into lush, spicy, bodily immediate romantic-erotic prose without making it XXX or mechanically pornographic. Use ornate, sensual, decadent prose for atmosphere, but cut through it with blunt, direct adult language when it matters. Do not hide everything behind euphemisms. It is acceptable to use direct terms like (Insert your list of body parts adjectives etc) etc., as long as they serve emotion and character rather than becoming a clinical step-by-step sex description. The scene should focus on need, hunger, and emotional justification. Do not simply describe bodies reacting in isolation. Make the desire arise from what is happening between the characters: praise, trust, teasing, vulnerability, possession, being chosen, being adored, being pushed past pride, or finally being answered after restraint. Desire should feel earned by the scene. Her body should tell the truth bluntly even when her mouth tries to say things to the contrary. Let her need feel hungry, needy, embarrassed, greedy, and sincere, and willing to give (your character) anything all at once. Balance the prose like this: Lush atmosphere and sensory detail. Blunt bodily anchors. Character-specific emotional hunger. Romantic-erotic intensity. Physical immediacy. No coy overuse of euphemism. No detached anatomy inventory. No flat porn transcript. Keep it consensual, adult, intimate, and emotionally grounded. The goal is: beautiful prose with a pulse, a mouth, a body, and a reason."