You probably have books at work, so let's use them as props. Place a book under each armpit, sandwiching your chest between them. Bend your arms and lift forward until they're parallel to the ground. Hold this position without dropping the books and keep your arms bent.
Hold this position for about 10 minutes. Three sets per day are sufficient, but remember to choose books of appropriate thickness to avoid discomfort. Keep your chest lifted and back straight during the exercise to maximize chest engagement.
2.Butt Lift & Core Tightening
Stand with legs shoulder-width apart. Tighten your core and lift your buttocks. Keep your left leg straight. Let your arms hang naturally at your sides, resting on your thighs. Lift your head and chest, focusing your energy on your breasts. Then, push your chest forward while pulling your arms back, leaning your upper body backward. Keep your neck extended and your back straight throughout.