Why is that you cant still penetrate your partner?

Answer 1

It is assumed that you are a male and a female.

You must prepare the vagina for sex with foreplay and stimulation with a finger until it is slippery or you must add lubrication gel to make it slippery. If the vagina is very small and cannot admit a finger there is a medical problem or your partner is a virgin.

If she is a virgin she may have an intact hymen (maidenhead) which can usually be broken by finger or penis pressure. If the hymen is too tough to break, it is better to have it medically cut open.

Answer 2

There could be various reasons why penetration may be difficult or not possible, such as lack of arousal, vaginal dryness, pelvic pain, insufficient lubrication, anxiety, relationship issues, or medical conditions. It's important to communicate openly with your partner, seek advice from a healthcare provider, and perhaps consult with a sex therapist for further guidance and support.