For a 1.9metertall man and a 1.7metertall woman, the following sexual positions might work well, considering their height difference:
1. Missionary with Legs Elevated: The woman lies on her back with her legs raised or supported by a pillow, which can help align their bodies more comfortably.
2. Doggy Style: The woman on all fours allows the man to penetrate from behind, accommodating the height difference while allowing for comfortable depth and angle adjustments.
3. Cowgirl/Reverse Cowgirl: The woman sits on top, which allows her to control the depth and angle of penetration, making it easier to adjust for height differences.
4. Standing Positions: The man can stand while the woman wraps her legs around him, either while he supports her by holding her up or by having her stand on a supportive surface.
5. Edge of the Bed: The woman lies on the edge of the bed, with her hips at the edge, while the man stands or kneels, which can help manage the height difference.
Adjusting angles and using pillows for support can also enhance comfort and pleasure in these positions.