The Stimulation aid comprises a surface 16 of deformable material, shaped as a tube with an end portion turned inside-out forming an opening 12 to an interior an actuator 6 for moving the surface to either rub a contact area 4 or draw genitalia into the interior and potentially a plurality of projection members 60, 2, 64, 66 and/or vibrating units 80, 82, 84, 86. The tube may form a toroid, which may be filled with a fluid such as a liquid or gas, similar to a water snake. The projection members and/or vibrating units may be arranged to correspond with another projection member or vibrating member respectively. The projection members and/or vibrating members may be arranged in sets which correspond together as the surface is moved into the interior. The projecting members may have varying sizes and shapes, such as conical, pyramidal, cylindrical, forked, l-shaped, t-shaped, finger and projecting 5mm to 40 mm
