| Part | KS-001-WIDE | Rev | A | Sheet | 1 of 1 |
|---|---|---|---|---|---|
| Title | Widely Opened Position | ||||
| Source | Kama Sutra | Chapter | Kama Sutra positions | ||
Utphallaka
1 pelvic. θ = B lumbar extension (pelvis raised, head down).
CAUTIONPelvic raise loads B lumbar. Stop on lumbar pain. Unguent if B reports tightness at entry. Consent required; either partner may stop.
Specifications
| Property | Value |
|---|---|
| Configuration A | kneeling |
| Configuration B | supine |
| Ground | bed |
| Remaining DOF | B lumbar extension; A knee pitch |
| Entry angle θ | θ 40-60° from B midline, pelvis elevated |
| Penetration | deep |
| Contact patches | pelvic A ↔ pelvic B |
| External stimulation | incidental |
| Eye contact | optional |
| Load path | B shoulders and feet to ground; A knees to ground |
| Hip ROM required | moderate |
| Stability | moderate; B bridge fatigues |
| Difficulty | 2 / 5 |
| Hands free | B occupied by bridge; A optional |
| Failure modes | B lumbar fatigue; collapse of pelvic raise; entry tightness |
Bill of materials
- B0 / B1B head down, pelvis raised
- B2 / B3B femurs, slight flexion
- A1 / A2A kneeling, inclined
- Groundbed
Procedure
- Body B shall be supine, then raise the pelvis until B hip is above B head. Shoulders stay on ground.
- Body A shall kneel between B femurs.
- Seat pelvic contact. θ is set by the height of the bridge.
- If B reports tightness at entry, apply unguent before step 3.
- Hold the bridge only as long as B lumbar allows. Lower the pelvis to KS-006-YAW or KS-010-CLSP to unload.
Source text
"When she lowers her head and raises her middle parts, it is called the widely opened position. At such a time the man should apply some unguent, so as to make the entrance easy."
Burton trans., Kama Sutra II.vi (1883)