Curious what has worked to increase breast size

Great question, nipple stimulation works really well. Along with natural supplements of garlic (tablets), Shatavari (to balance the female hormones) and morninga. Nipple stimulation is lots of fun but needs to be while imagining nursing and/or evoking love or affection mentally similar to how a mom would feel if a baby was nursing her. In that regard, supplements that reduce cortisol or stress hormone in the body like (ashwagandha) would be very beneficial. There are a lot of other things to promote lactation like lactation cookies and goats rue but I have not tried those.