Two young twink boys with thin bodies, short black hair, beautiful blue eyes

two young twink boys with thin bodies, short black hair, beautiful blue eyes, beautiful red lips, wearing pink light shorts and transparent shorts, swimming in an indoor pool, doing backstroke, with sweet expressions, sweating, with bellies and feet visible, toes touching the water, (best quality,4k,8k,highres,masterpiece:1.2),ultra-detailed,(realistic,photorealistic,photo-realistic:1.37),HDR,UHD,studio lighting,ultra-fine painting,sharp focus,physically-based rendering,extreme detail description,professional,vivid colors,bokeh,portrait