no Plan survives contact with your girlfriend

The plan dies the moment she comes out of the bedroom.

Sandra is wearing the swimsuit first—if it can even be called that. Two thin triangles for a top, strings that look like they would give up in a light breeze, bottoms so narrow that when she turns you can see the full curve of her ass and the soft line of her pussy lips where the fabric fails to cover anything that matters. She does a little half-spin, clearly intending to ask if it is too much, and the question never gets finished. You are already crossing the room.

She laughs, breathless, and tries to put the sundress on over it “just to see the full look.” That is worse. The dress is short, pale, and thin enough that the dark of the swimsuit shows through until she peels the bottoms off “because they look ugly under it.” Then she is standing in your hallway in a tiny sundress and nothing else, smoothing the fabric down over bare hips, already pink in the cheeks because she is thinking about the trip. About standing in a full cabin with no underwear. About your hand under the hem.

Your male heart does not survive it.

You have her against the wall before she can find her sandals. The sundress is shoved up around her waist, her bare pussy already wet from the imagining alone, and you sink into her in one hard thrust that knocks a startled moan out of her. She clutches your shoulders, legs wrapping around you on instinct, and whatever responsible thought either of you had about departure times leaves the house.

You fuck her there first—deep, urgent, the sundress bunched between your bodies, her tits barely contained by the excuse of a bikini top that is still on because neither of you bothered to take it off. Then you carry her back to the bed because your knees are not interested in supporting both of you against plaster for as long as this is going to take. The swimsuit top ends up around her ribs. The dress stays on, rucked up, a ridiculous yellow frame around the place you keep driving into her.

Sandra is already gone on it. Every time you mention the outing she clenches. Every time you tell her she would have been walking through a carriage like this, freshly fucked, no panties, she moans like you are describing something happening right now. You fill her once against the mattress, stay inside, start moving again before she has even caught her breath. The semen demon you created over the last week is fully awake, heels in your back, asking for another load like missing the train is an acceptable trade.

It is.

By the time you both collapse the light in the window has changed. The specific midday window at the resort—the quiet lunch hour you had built the whole fantasy around—is gone. You check the time, groan, and she laughs into your shoulder, still twitching around you, sundress stuck to her stomach with sweat.

“Tomorrow,”
she says, not sounding particularly devastated.
“We’ll set an alarm. We’ll be good.”

You do not believe either of you.

You also cannot look at her in that dress, hair wrecked, thighs shiny, bikini top crooked, and go back to a normal afternoon indoors. The suggestion comes out easy.

“Walk. Near the beach. Like this.”

Sandra blinks at you.

“Like this,” you repeat. Small sundress. Nothing underneath. Freshly fucked and still leaking, happy, walking the path above the sand where the breeze will lift the hem if it wants to. Not the full crowded-train, public-pool spectacle. Just enough air and enough people in the distance to keep that look on her face.

She stares at you for a second, then bites her lip in a way that is not reluctance.

“…You’re going to kill me,”
she mutters, but she is already sitting up, already tugging the sundress back down over her hips like that will hide anything. The bikini top gets adjusted with zero conviction. She does not put the bottoms back on. When she stands, a thin shine of your cum is already threatening the inside of one thigh, and she presses her legs together with a flustered little sound that is half shame and half thrill.

“If the wind picks up I’m blaming you.”

“You can blame me while we walk.”

She takes your hand at the door anyway, still pink, still smiling that private, dangerous smile, the fabric of the sundress clinging to a body that has been used all morning and is about to be walked through public air like that is a reasonable thing to do.