Sunscreen - Belphie
Rating: 18+ MDNI
Pairing: Belphegor X F!Reader
CW: Public sex, clothed sex, back shots, cum as a lotion, brat.
Word count: Roughly 1K
A/N: You wake up from a nap on the beach, with a certain Avatar of Sloth trying to find some "Sunscreen"
Masterlist
You remember telling Belphie, the only brother not otherwise occupied, you were going to have a short nap. Making your way towards the area you had laid out a large beach towel area in the shade.
You also don’t remember asking him to join you. Largely because that was a given since any excuse to cuddle into your skin was something he often took advantage of. So you weren’t surprised by the sensation of warm skin along your back when your mind started to slowly wake.
You were, however, surprised to feel warmth inside of your core along with the sound of wet squelching. It wasn’t loud, but it didn’t need to be. The raspy breath in your ear was pulling you from the post fog haze faster than anticipated. Belphie’s panting in time to the shallow movement of his hips has made you well aware of his cock stuffed into your cunt. With the amount of moisture and the way he's gliding in and out of you, you suspect the brat had waited until you were in a deep enough sleep to engage in one of his favorite activities.
With your eyelids closed, you realize you could make him aware of the fact you’re awake now. But where would the fun in that be? Especially since you know him well enough to know that he’d still his hips with his tip buried as deeply inside your moist walls as possible, but just out of reach of that spongy portion that made you see stars when he was pressed against it. Whispering in your ear that since you were awake, you should take over because he was tired.
You’d fallen victim to that little trick and been denied your orgasm one too many times before.
This time, you’re going to enjoy all his effort.
Focusing on keeping your body relaxed and your expression neutral to feign sleep. That focus didn’t mean you had to ignore how he felt. Or how he had positioned the two of you so you were on your sides, heads pointed towards the shore so no one could see what he was up to. Like this, he has to slide his cock between your thighs, your skin slick from your fluids traveling along the curve of his shaft. The bottom of your swim shorts are tugged down, the hem just under the swell of your ass cheeks, making it so he doesn’t have to keep the material out of the way.
One of his hands is on your chest, fingers toying with the material covering the breast he’s holding. You can feel the digits twitch when they squeeze down in time to his dick pressing as deep inside of you as he can in this position and without having to work hard. The slow drag of his shaft and the veins lining its surface send electricity tingling along your spine just as often as when he’s snapping his hips with enough force to make you cry.
A sudden shift from the man wedged against your back, and the sensation of goosebumps rising along the skin of your neck as his teeth drag over your pulse point almost makes you gasp.
Almost.
Biting the inside of your cheek closest to the towel and willing your inner walls not to clamp down hard enough that the blue-haired demon can’t finish his slow roll backward. You feel your heartbeat start to speed up when Belphie gives his hips a circular roll, smearing more of your fluid between your thighs while brushing a bundle of nerves just inside your slick channel that makes your stomach clench.
He really is devious. His smirk is as clear as day with the way his lips curl while tucked up against your neck. The squelching grows louder as he starts to move his hips a little faster, his other hand pressing down on the top of your outer thigh. Creating more pressure as the parts of his shaft outside your slick heat rub against the skin.
You can’t stop the jagged inhale you take when you feel his cock start to swell with the telltale sensation of his impending release. Growing thicker and spreading your walls just enough that they start to burn from the stretch, the veins along his skin pulsing as his blood pumps faster through his body.
Your eyelids are starting to flutter as your body reacts, walls tightening along his shaft, toes curling as the muscles of your legs grow taut.
“Fuck!” Hissed against your ear as the pressure along your thigh fades, hurried movements and the warmth along your back is gone in an instant. Replaced by the sensation of thick, searing fluid splattering against the small of your back.
A loud drawn-out sigh from Belphie as he rubs the tip of his cock against the swell of your ass, spreading the remains of his release against your skin. Once he was finished, you heard movement, followed by his hand shifting the band from your swim shorts back up along your hips. The cum along your lower back starting to follow gravity as it slides down towards the beach towel. Only for his hand to land there, starting to spread the liquid higher along your back in a thin layer.
“The shade is getting smaller.” Whispered against your shoulder as he shifted to leave just enough space once his hand was done that his body wasn’t touching your damp skin. “I went and got you some sunscreen.” A light chuckle, and you felt your stomach drop.
Of course the little bastard realized you woke up and decided to leave you high and dry once more! Only with that statement, you can’t call him out on it because he’d pout that you didn’t deserve a round two later.
Grinding your teeth for a moment as his cum started to slowly dry under the heat, evident even in the shade. “Thanks, Belphie.” Hearing him let out another chuckle before pressing his face into the back of your neck.
“You can thank me later in the attic.” You should have known you couldn’t pull one over on the Avatar of Sloth.












