Foreskin is double-layered skin, mucosal and muscular tissue covering penis glans. Develops from genital tubercle during early pregnancy, complete by 19 weeks. Outer foreskin measures 7-100 cm², inner foreskin 18-68 cm². Attached to glans by frenulum, which tightens when penis is not erect
Defloration refers to the breaking of the hymen, which can occur through various means. Virginity means never having engaged in sexual intercourse. Virginity is a social construct with different meanings across cultures
Semen is a whitish fluid containing seminal fluid and sperm. Average ejaculation volume is 1.25 to 5 milliliters. Semen liquefies within 20-30 minutes after ejaculation. Pre-ejaculatory fluid (precum) is colorless and mucus-like
Itching testicles is a common symptom of various skin conditions. Scratching causes skin tears that can lead to infections. Chafing occurs when scrotum rubs against other skin. Fungal infections thrive in warm, moist areas. Jock itch is a fungal infection causing burning and itching
Choose a large, warm room with a duvet and comfortable pillows. Warm up massage oil using water or stove heat. Ensure partner is naked or wearing underwear
People burn 3-4 calories per minute during moderate-intensity sex. Men burn 4.2 calories per minute, women 3.1 calories per minute. Average sexual encounter lasts 6 minutes, burning 25-19 calories