Many men over fifty - five need direct stimulation of the penis to get it up. (religion-online.org)
«When you're home with your baby and when baby is feeding from you, more milk is produced from direct stimulation: we smell, feel, and see our baby,» Schwartz explains. (romper.com)
You'll be using dumbbells here for the same reasons we just talked about, and you'll be using the 30 degree incline since this properly angles your body for direct stimulation of the upper chest. (seannal.com)